AT Films® Dura-Film® Thermax Sheets - Standard Sizes48ft x 100ft SheetEvery grower strives to produce the best crop they can while keeping production costs to a minimum. AT Films' Dura-Film Thermax greenhouse poly combines all of these extras into one package. Superior drip control, energy savings, and bee compatibility are all packaged together to provide growers with one film at one cost. Dura-Film® Thermax is available in a selection of stock sizes and is available during certain "runs or campaigns" at predetermined widths without minimums. All other widths are considered custom product.